Fixture



Get. 9, 1928.

w. HARRISON ET AL FIXTURE Filed March 1925 Wa am Patented @ct. 9, 1928.

UNITED sT-ATris WILLIAM HARRISON 'AND,EARL.E. LUNCEFORD, OF SAN BERNARDINO, CALIFORNIA.

FIXTURE.

Application filed March 2,1925. Serial 1V0. 12,764. g

This invention relates to fixtures and in particular to a novel means whereby certaln elements of such fixture may be held in working relation, and which elements so 5 held may be quickly and easily disconnected or detached from one another. Broadly speaking, the invention may assume various aspects from the standpoint of use and service and the invention is adaptable for the general form of street light now used in large cities wherein there is provided a single central light held on a large post with two or more side bracket lights. Ordinarily, the

globes that encase the lights, whether they be are lights or ordinary incandescent bulbs, must be removed from their standards for cleaning or 1n the case of arc lights for a renewal of carbons, and where the globe is held to the standard by screws or other means,

it is a tedious task and one that cannot be quickly and easily accomplished, as. the globes as a rule are large and very heavy and costly if they happen to be dropped and broken. It is the purpose of the present invention to provide means whereby two parts may be quickly united or take apart. The invention is applicable for other uses than that of maintaining a globe to a base or mount ing in position of use and service, and it is applicable as between any two elements that it is desired to have readily connectedby quick detachment means.

Other objects include inexpensiveness of construction and general superiority from a use stand-point. I

'With the above and other objects in view the invention consists in the novel and useful provision, formation, construction, association and relative arrangement of parts, members and-features, all as shown in certain embodiments of the accompanying drawing, described generally, and more particularly pointed out in claim.

In the drawing: Figure 1 is a side elevation showing an adaptation of the invention for use in holding a globe to a base or mounting; Figure 2 is a fragmentary view partly in section of details of construction, the view being similar to that of Fig. 1;

Figure- 3 is a cross sectional viewon the line 8-3 of Figure 1;

Figure 4 is a fragmentary cross sectional view on the line 4- 1 of Figure 3;

Figure 5 is a fragmentary cross sectional view on the line 55 of Figure 3;

Figure 6 is a fragmentary detail of the method of holding certain means constituting .the invention to various elements'associated therewith;

Figure 7 is a perspective view or an element of the invention; and

Figure 8 is a side elevation of the, element shown in Figure 7. I

Corresponding parts in all thefigures are designated by the same reference characters.

Referring with particularity to the drawing, the device as an entirety and in one embodiment is designated byA, and which device includes means adapted to act in conjunction with two other members as a globe b and a base or mounting a for holding such globe to such base ortmounting. The base or mounting in Figures 1 and 2 is shown as standing upright with a' globe supported or mounted thereon, and it is obvious that the baseor mounting mighttake the form of a canopy and hang downwardly with the globe suspended therefromQ It is further obvious that there might be certain of such bases and globes arranged substantially in the position globes hanging downwardly from suitable brackets.

It is customary in globes to provide the same with a transversely curved flange, or a flange provided with an annular curved chan nel, as for instance illustrated in Fig. 2 at 1, and the base or mounting 0 is usually provided with an annulus as shown at. 2 through which are passed screw-threaded members adapted to be received within the channel of the flange in the globe so that the globe is retained in position upon or to the base by such screw-threaded members engaging such flange. It is of course realized that the transverse curvature given such flange prevents the screw-threaded members from slipping from such flange in a well understood manner. However, such means do not allow a quick-detachment of the globe from the base or moun'ting, and as stated above it is the purpose of the present invention to allow a quick detachment between two operating members. I

The retaining member a is illustratedin detail in both Figures 7 and 8, and wherein it will be. seen that the same may take the form of a band or ring or wire having an in,- here nt springlike quality and which in the embodiment shown is provided with two wings 3 and 4 forming the terminus for a shown in Figs. 1 and 2, with other bases and substantially annular shaped member 5, and which member diametrically opposite the wings 3 and 1 is bent downwardly as shown at 6, with side portions of such annulus, as shown at 7 and 8 structurally bent with respect to portions 9 and 10, which portions it will be seen are respectively in the zone of the bent portion 6 and the wings 3 and 4.

If we provide the flange or ring 2 with an inwardly projecting stud 11, which stud may, as Figure 3 shows be screw-threaded and passed through a screw-threaded transverse opening in such ring, then at a diametrically opposite point to such stud provide the said ring or flange 2 with opposed bayonet slots,

as shown at 12 and 13, it ispossible through the medium of the means a to secure the globe to such base or mounting in such a manner that the globe maybe quickly detached from such base or mounting with a minimum of effort and time spent. The, retaining means a is first received within the flange portion 1 of the globe b, whereupon the globe with the said retaining means is placed within the flange or ring 2 in such a manner that the part 6 is received beneath or under the stud 11 as shown in Fig. 2 at 14. The two wings 8 and 1 are then brought together so that the same may pass through the cut-away or slotted portion 15 forming a common entrance for the opposed bayonet slots 12 and 13, then the wings are released so that they are received within the portions 12 and 13 of such bayonet slots. The portions 7 and 8 of the meansa which are curved downwardly with respect to an im aginary plane which would lie between the portions 9 and 10, it will be seen on ref erence to Fig. 2, will bear downwardly upon the curved flange 1 adjacent the rim of the globe, while the portions of such retain ing means adjacent the zones 9 and 10 will bear more centrally against other portions of such curved flange of the globe and with the result that the globe is resiliently yet firmly held to the base or mounting 0. It is a simple matter to remove the globe from the base or mounting by simply squeezing the wings together so that the same may be slipped through the slot 15, whereupon the globe may be lifted from the flange, the portion 6 of such means a slipping from beneath the stud 11.

It will be seen both upon reference to the drawing and the description of the invention as so far given, that the retaining member 0rv is so formed as to bear downwardly upon the curved flange 1 of the globe so as to hold the same tightly to the base or mounting 0. Furthermore, the retaining means a is adapted to engage different zones of such curved flange 1, as Figures 1 and 2 show. It

is evident that this would be true, as when the retalnmg means a encircles the curved flange of the globe b and the said flange is inserted within the ring or flange 2 associated received in the opposed bayonet slots12 and 13, will cause the portions a'sshow'n at 7 and 1 8 of said retaining means to slide along the curved flange of the globe. and attempt to bend the same outwardly or increase the diameter that would normally exist between such parts 7 and 8, and when the wings are received within the bayonet slots and allowed to lock therein, the parts 7 and 8 will benear the rim of the flange 1 of the globe, while the parts as shown at 9 and 10 will be somewhat near the portion of least diameterof such curved flange 1. This is of great importance, as it forms a secure lock for the globe to the base and so long asthe stud engages the retaining means and thewings are-received within the bayonet slots, the globe b cannot escape or fall. from the base or mounting as the part-s of such retaining means with relation to the flange of the globe are so related that any side movement of the-globe is immediately resisted by pressure of the retaining means. It may be considered that "the curved flange l constitutes an external member adapted to be received within the flange 2 constituting an internal member with the retaining means a cooperating withboth of said members for holding the same in work.- i

ing relation. It is obvious that various changes and modifications may be made in practicing the invention, in departure from the particular showing, without departing from thetrue spirit of the invention, and further that the means just described may be applied to vari ous uses and purposes other than that shown in the drawing. j

Having thus disclosed our invention, we claim and desire to secure, by Letters Patent: A device adapted to hold a, globe having a curved flange member and a base in working 

